Light-reflecting means



March 15 1927.

c. B. ROEBKEN LIGHT REFLECTING MEANS Filed Dec. '1, 19125 Patented Man 15, 1927.

UNITED STATES amaze GABL B. BOEBKEN, OF WASHINGTON, DISTRICT OF. COLUMBIA.

LIGHT-BEFLECTING MEANS.

' Application filed December 1, 1925. Serial No. 72,502. Y

M invention relates to the construction of lamps and is particularly adapted for use where an even and diffused lighting efiect is desired, at the same time providing a light having a long distance projection. When used in connection with motor vehicles, my improved head light will eflectually eliminate the dreaded linding effect ordinarily produced by high powered head lights, thereby rendering night driving considerably safer; 1

My invention further not only regulating the of the high powered lighting effects, but the direction of projection may be readily adjusted so as to conform to the loperators wishes and to the regulations of particular jurisdictions. The scope of my invention extends to whatever construction may be defined by or included within the terms or language of the appended claims.

In the drawing:

Figure 1 is a central longitudinally sectional view illustrating my improved li ht in connection with a hanging or drop lig t;

Figure 2 is a similar view showing the light in connection with a head light and Figure 3 is a view in perspective of' the inner casing or reflector holding means. l

My invention, inthe form or embodiment shown in the drawing and briefly described, comprises an outer shell or reflector, 10, an inner reflector, 11, means 12, for adjustably supporting the inner reflector and lighting means centrally located within the outer reprovi'des means for flector and rearwardly ofthe inner reflector..

Referring particularly to Figure 1, the outer reflector, 10, is formed of a plurallty of annularly disposed and outwardly curved portions, 13, which are treated on their inner surfaces for the purpose of reflection, de-

ending upon'the quality or projection of fight that is desired. I have found by actual ex eriments that when forming this outer reflector, 10, of aluminum,that a very desirable and highl efficient light is produced.

An exterior y threaded socket, 14, is centrally located within the reflector, 10, and securely held in position by means of the ring or similarly constructed member, 15, which may also be used for hanging the fixture. The electric bulb, 16, is, of course mounted within the socket, 14, in the usua manner.

A relatively short distance below the bulb eam of projection or-electric light,- 16, is adjustably mounted the inner reflector, 11, so that it may be arm, 19, is provided with a longitudinally extending slot, 21. In the form of my invention illustrated in Figure 1, a transversely extending arm, 22, is integrally formed upon the outer portion of the inner reflector, 11, for the purpose of receiving a screw, 23, which is adapted to pass through the slot, 21, for locking the inner deflector, 11, in its adjusted position. It will be noted that the outer end of the arm, 19, is curved con forming to an arc, with the pivotal point, 20, as its center, thereby providing a uniform bearing surface along the entire distance of the slot, 21. The opening, 24, of the hub portion, 17, is preferably made-slightly larger than the outer diameter of the threaded por'- tion, 14, of the socket to permit its ready adjustability. Lock nuts, 25, are adapted to engage this threaded portion, 14, for securely locking the supporting member, 12, in its adjusted position. v

The inner reflector, 11, is preferably constructed of relatively thin sheet metal, hav ing two or more outwardly bulging and annularly' disposed ring portions. In this instance, the outer surface of the inner reflector, 11, is polished or otherwise treated for reflecting the rays of light from the bulb, 16, rearwardly against the curved surfaces, 13, of the outer reflector, 10, from which points they. are again reflected forwardly, as indicated diametrically in Figure 2. A lens, 25', is mounted Within the enlarged end of the inner reflector, 11, for pur uses of projection. This is partlcularly a vantageous for. use in connection with head lights wherein it is often desirable to penetrate fogs and other heavy atmospheres upon certain portions or an Ice of the road bed.

In Figure '2, a shg tly different form of vas is clearly indicated in Figures 1 and 2, as at 20, whereas, the outer extremity of the.

arm, 19, is illustrated and for the purpose of ready adjustment, the screw threaded pin, 26, is mounted upon the outer rim, 27, of the inner reflector, 11.

I claim':

1. A lighting structure. including an outer reflector, a socket arranged centrally with- 'in-the outer reflector, a light source in said socket, an inner reflector arranged within the outer reflector and in advance of the light source, said inner reflector being formed with an opening to permit the passage of light rays through the inner reflector, a lens carried by the inner reflector, and means t'or supporting the inner reflector from said socket and movable longitudinally of said socket to permit the adjustment of the inner reflector to and from the light source, said means including a pivotal support for the inner reflector to permit a tilting thereof on an axis fixed in the plane of the lens and an element for fixing the inner reflector in tilting adjustment.

2. A lighting structure including an outer reflector, a socket arranged centrally within the outer reflector, a light source in said socket, an inner reflector arranged within the outer reflector and in advance of the light source, said inner reflector being formed with an opening to permit the passage of light rays through the inner reflector, a lens carried by the inner reflector, a support for the inner reflector, including a hub portion for adjustable mounting on said socket, arms projecting from the hub for pivotally cngagmg the inner reflector at diametric points to permit tilting of the inner reflector, a third arm projecting from the hub, and means for adjustably fixing the inner reflector to such third arm for securing the inner reflector in desired-tilting adjustnient.

CARL B. OEBKEN. 

